The basic information of the RBC/UKQCD 2+1 flaovr dynomcial ensembles we used in this project is summarized in Table REF , which “DW” refers to domain wall fermion action, while “I” indicates that the gauge field is Iwasaki. For more information about these two ensembles, see
[1]}. We used the overlap fermion action [2]} for the valence quark, with 1-step HYP smearing on the gauge field and \(\rho =1.5\) .
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